@misc{indiciaea1fcd3287b1f,
  title = {Preferences for fixed and variable food sources: variability in amount and delay.},
  author = {M Bateson and A Kacelnik},
  year = {1995},
  doi = {10.1901/jeab.1995.63-313},
  url = {https://pubmed.ncbi.nlm.nih.gov/7751835/},
  note = {Source identifier: 7751835}
}